[Xen-changelog] [qemu-xen-unstable] allow logdirty commands while paused (unbreaks 60dbe1+8f09f4)

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

commit 743edef44f1d0da792aeb38a33bf468a4596f730
Author: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Date:   Wed Sep 23 15:07:47 2009 +0100

    allow logdirty commands while paused (unbreaks 60dbe1+8f09f4)
    
    60dbe1+8f09f4 breaks HVM live migration: 60dbe1 causes xc_save to
    attempt to disable logdirty mode while qemu is paused. 8f09f4 disables
    most commands, including logdirty, while the domain is paused. So
    xc_save times out waiting for qemu to respond to the logdirty disable
    command, and live migration fails. Logdirty commands issued while
    paused should not affect the stability of ioemu.
    
    Signed-off-by: Brendan Cully <brendan@xxxxxxxxx>
---
 xenstore.c |   10 +++++-----
 1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/xenstore.c b/xenstore.c
index e091259..4dcc4d1 100644
--- a/xenstore.c
+++ b/xenstore.c
@@ -864,6 +864,11 @@ void xenstore_process_event(void *opaque)
         goto out;
     }
 
+    if (!strcmp(vec[XS_WATCH_TOKEN], "logdirty")) {
+        xenstore_process_logdirty_event();
+        goto out;
+    }
+
     /* if we are paused don't process anything else */
     if (xen_pause_requested)
         goto out;
@@ -874,11 +879,6 @@ void xenstore_process_event(void *opaque)
             xenstore_watch_callbacks[i].cb(vec[XS_WATCH_TOKEN],
                                            xenstore_watch_callbacks[i].opaque);
 
-    if (!strcmp(vec[XS_WATCH_TOKEN], "logdirty")) {
-        xenstore_process_logdirty_event();
-        goto out;
-    }
-
     if (strncmp(vec[XS_WATCH_TOKEN], "hd", 2) ||
         strlen(vec[XS_WATCH_TOKEN]) != 3)
         goto out;
--
generated by git-patchbot for /home/xen/git/qemu-xen-unstable.git

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